Paper bag



DAN'IELAPPEL, or CLEVELAND, omo.

PAPER BAG.

SPECIFICATION forming part of Letters Patent No. 234,839, dated November 23, 1880.-

Applicaticn filed April 2, 1880.

To all whom it may concern:

Be it known that I, DANlEL APPEL, of Cleveland, county of Cuyahoga, State of Ohio, have invented an Improvement in the Manufacture of Paper Bags, of which the following description, in connection with the aecompanying drawings, is a specification.

This invention relates to improvements in the art or method of forming paper bags hav ing satchel-bottoms.

In this my new method I take a web of paper, fold it longitudinally, paste one edge, and lay it into tube form abouta former. The tube is eut off and creased transversely back of its leading edge for such a distance as it is desired to have the central fold from the leading end of the tube. Before the paste at the leading end of the tube in front of the said transverse central fold-crease or fold has a chance to dry or set I place along and upon one side of the tube near its seam, but not touching it, a holder which bears upon and holds down the inner ply of that half of the tube in which the longitudinal seam is made, and with a suitable roll I engage the inner face of the outer ply of the same half of the tube, and with a tucker placed against the outer face of this outer ply I fold or turn over or carry back upon the top of the tube the free end of the said outer ply. This done, a second holder is made to bear upon the said outer ply along its outer edge to hold it down, and also upon the free end just turned over, as described, while with another roller and tucker I engage the inner face of the inner ply and turn its free end back, as before described with relation to the free end of the outer ply, which completes the second half of the diamond fold and permits the pasted edge of one ply not yet dry to adhere to the edge of the other ply, joining or finishing the longitudinal seam to the end of the tube. This operation completes the diamond fold. By working in this way I am enabled to form each part of the diamond fold at opposite sides of the central seam at different times, thus actually givingme more time and space in which to make the diamond fold, and I am also enabled to form the diamond fold with less strain upon the paper. The usual final or cross folds in (Model.)

the bag may be made in any usualor suitable way.

I propose shortly to file an application for a patent for a machine to automatically produce a tube from a web of paper and fold its front end as herein described to make bags having Satchel-bottoms.

Figure l represents in top view a piece of paper tube of sufficient length for a bag, it being supposed to be pasted togetherl along its upper side from its rear end up to the line :c x, which indicates the crease upon which the central transverse fold of the bag-bottom is to be folded, the lapped edges of the tube beyond the said crease being free or disconnected.

Fig. 2 is a view of the upper side of the bag, showing the next operation or step in the formation of the diamond fold. In it it is supposed that the inner ply,7 a, as I shallcallit, of the tube, is held down in any suitable way, preferably from end to end, by a holder which will prevent its rising, and that a roller or other suitable device under the free end of the outer ply, b, between its front end and crease v x, co-operating with a suitable bladcortucker outside the said outer ply, b, acts to lay the free leading end of the outerply, b, over, forming the diagonal folds or triangular portion c, which lays out that half of the diamond fold into which the outer ply, b, enters as a component part.

Figrepresents the tube of one bags length subjected to the next step or operation. To bring the leading end of the tubula-r piece of paper into the form shown in the said ligure a holder will be caused to descend upon the outer ply, b, and its folded part c, and hold it down, preferably from end to end of the tube, while a second roller inserted or brought within or under the free end d (see Fig. 2) of the inner ply, a, co-operating with a suitable blade or tucker at the outer face of the upper side of the bag, will turn back the free end cl to form the folded part e. This folded part e heilig so laid and formed causes the edges of the tube before free to unite by reason of paste applied, as at 2, when d is laid overin contact with the edge ofthe folded part c, thus completing the diamond fold and the longitudinal seam of the bag from end to end.

IOO

Thelines 2 4, Fig.3, designate lines ot' paste. Figs. 4 and 5 represent the tube folded as it Will inally be done, these iigures needing no descriptioin'for the steps therein shown are not of my invention; and Fig. 6 is a View of the open or leading end of the tube, drawn in order to enable me to show the under half, j', ot' the tube and the positions of the inner ply, a, and the outer ply, b, constituting the upper half of' the completed bag. The part a of the said tube, from its right-hand edge to the edge of the paper, extends under the edge of the other part, b, and I therefore herein designate it by the term inner ply, and the part b bythe term outer ply.7 The bag having been brought into the condition shown in Fig. 5 may then be folded longitudinally along the dotted lilies y y.

I claiml. The method or process of making the first half of the diamond fold of a Satchel-bottom bag as described, which consists in folding or turning over from its inner side the free end of the outer ply of one half ofthe tube,

While the inner ply is held down at its free end, thus forming one half or side of the diamond fold at one side of theline of lon gitudinal seam in the tube substantially as described.

2. That improvement in the art or method ot' forming the diamond fold of a Satchel-bottoni bag from a tubular piece of paper which consists in holding down iirst theinner and then the outer ply of that half of the bag in which the longitudinal seam of the tube is made, and then operating upon the inner sides of the free ends of each of the said plies in succession and turning them back to form the diamond fold, after which the free ends of the inner and outer plies are united, substantially as described.

In testimony whereof I have signed my naine to this specification in the presence of two subscribing Witnesses.

DANIEL APPEL. Witnesses:

G. W. GREGORY, N. E. G. WHITNEY. 

